CN210110649U

CN210110649U - Circuit breaker with on-off relay intelligent control module

Info

Publication number: CN210110649U
Application number: CN201921109600.6U
Authority: CN
Inventors: 李其利; 钱江波; 郑文秀
Original assignee: HONGXIU ELECTRIC CO Ltd
Current assignee: HONGXIU ELECTRIC CO Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-02-21
Anticipated expiration: 2029-07-16

Abstract

The utility model relates to a circuit breaker with divide-shut brake relay intelligent control module, it includes the circuit breaker body, divide-shut brake relay intelligent control module is integrated in the circuit breaker body, it includes permanent magnet relay and control chip, the switch end of permanent magnet relay is established ties with L looks port and N looks port of circuit breaker body respectively, control chip has at least four control pins that are used for output signal, control pin is connected with the coil both ends of permanent magnet relay through the switch circuit that field effect tube constitutes, permanent magnet relay has the break-off state that L looks input and N looks input of breaking-off circuit breaker body when control chip exports branch logic signal and the combined state that switches on L looks input and N looks input of circuit breaker body when control chip exports the combined logic signal, switch circuit through field effect tube constitutes, through the switching on of different logic signal control corresponding field effect tube, the L phase and the N phase are cut off, and the input end is directly cut off.

Description

Circuit breaker with on-off relay intelligent control module

Technical Field

The utility model belongs to miniature leakage circuit breaker field, concretely relates to circuit breaker with divide-shut brake relay intelligent control module.

Background

A miniature leakage circuit breaker, RCBO (Residual current operated circuit-breakers) is a terminal protection electrical apparatus used most widely in the application of electrical terminal power distribution devices of buildings. The protection circuit is used for single-phase and three-phase short circuit, overload, electric leakage and the like below 125A, and comprises five types of a single pole 1P + N, a two pole 2P, a three pole 3P, a four pole 3P + N, a four pole 4P and the like.

The miniature leakage circuit breaker is a widely used switching apparatus in a low-voltage distribution system, bears terminal distribution lines, and is particularly important for monitoring and protecting power utilization loops and electrical equipment in houses, can be instantly connected and disconnected, and can handle electrical faults such as short circuits, grounding, overload, leakage and the like, and plays an important role in safety and stability of power supply and utilization.

When the existing circuit breaker is used for remote opening and closing, the circuit breaker is mostly opened or closed through an opening and closing operation mechanism, and the micro-break generally needs to be externally connected with the opening and closing operation mechanism or other accessories to carry out remote opening and closing operation due to the problem of size, the size of the micro-break is increased due to the mode of adding the accessories, the installation of certain places is not facilitated, even if the opening and closing mechanism is added, the circuit breaker is generally operated by a motor to carry out opening and closing or a switching-closing coil is directly adopted, and opening and closing control is carried out through power-on control of the switching-closing coil.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a circuit breaker with divide-shut brake relay intelligent control module.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a circuit breaker with an intelligent control module of a switching-on and switching-off relay comprises a circuit breaker body, the intelligent control module of the switching-on and switching-off relay is integrated in the circuit breaker body and comprises a permanent magnet relay and a control chip, the switch end of the permanent magnet relay is respectively connected with an L-phase port and an N-phase port of the circuit breaker body in series, the control chip is provided with at least four control pins for outputting signals SW1, SW2, SW3 and SW4, the control pin of the SW1 is electrically connected with a G end of a field effect tube Q8, the control pin of the SW2 is electrically connected with a G end of the Q4, the control pin of the SW3 is electrically connected with a G end of a field effect tube Q10, the control pin of the SW4 is electrically connected with the G end of the Q11, wherein the S end of the Q4 is connected with the S end of the Q10 and is electrically connected with a power supply, the D end of the field effect transistor Q4 is connected with the S end of the field effect transistor Q8, the D end of the field effect transistor Q10 is connected with the S end of the field effect transistor Q11, nodes of the D end of the field effect transistor Q10 and the S end of the field effect transistor Q11 are electrically connected with two ends of a coil of the permanent magnet relay respectively, the D ends of the field effect transistor Q8 and the field effect transistor Q11 are arranged in a grounding mode, and the permanent magnet relay is provided with an opening state for disconnecting the L-phase input and the N-phase input of the circuit breaker body when a control chip outputs opening logic signals and a closing state for conducting the L-phase input and the.

Four control pins of the control chip are respectively electrically connected with the optical coupling isolation circuits in corresponding quantity, and the output ends of the optical coupling isolation circuits are electrically connected with the G end of the field effect tube.

The optical coupler isolation circuit comprises an optical coupler, one end of a light emitter of the optical coupler is connected with a control chip circuit, and one end of a light receiver of the optical coupler is connected with a field effect transistor circuit.

The anode of the illuminator of the optocoupler is connected with the power supply in series through a resistor, and the cathode of the illuminator is electrically connected with the control pin of the control chip.

And an emitting electrode of a light receiver of the optical coupler is grounded, and a collector of the light receiver is electrically connected with the G end of the field effect tube.

And a pull resistor on a collector of the light receiver is connected with a power supply, and a capacitor is connected in parallel between the collector and an emitter.

The G end of the field effect transistor is connected with a resistor in series, and the output signal flows through the resistor to the G end of the field effect transistor.

And the pull-down resistor at the G end of the field effect transistor is grounded.

And two ends of a coil of the permanent magnet relay are respectively grounded through resistors.

The utility model has the advantages that: through the switch circuit that the field effect transistor constitutes, switch on of the field effect transistor that corresponds through different logic signal control, realize that permanent magnet relay gets electric or can not get electric, thereby cut off L looks and N looks, and need not control the divide-shut brake mechanism of circuit breaker, the design of motor or divide-shut brake coil has been saved, the inside space utilization of reduction circuit breaker that can be very big, and when long-range divide-shut brake control, need not to carry out the operation of divide-shut brake mechanism, directly cut off the input can, response speed is faster, and safe and reliable more.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Fig. 2 is the circuit schematic diagram of the optical coupling isolation circuit of the present invention.

Fig. 3 is a schematic diagram of logic signals according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses a circuit breaker with divide-shut brake relay intelligent control module, it includes the circuit breaker body, divide-shut brake relay intelligent control module is integrated in the circuit breaker body, it includes permanent magnetic relay and control chip, the switch end of permanent magnetic relay respectively with the L looks port of circuit breaker body and N looks port series arrangement, control chip has at least four control pins that are used for output signal SW1, SW2, SW3 and SW4, output signal SW1 'S control pin and field effect transistor Q8' S G end electricity are connected, output signal SW2 'S control pin and field effect transistor Q4' S G end electricity are connected, output signal SW3 'S control pin and field effect transistor Q10' S G end electricity are connected, output signal SW4 'S control pin and field effect transistor Q11' S G end electricity are connected, wherein field effect transistor Q4 'S S end links to each other with field effect transistor Q10' S S end and is connected with the power supply electricity, the D end of the field effect transistor Q4 is connected with the S end of the field effect transistor Q8, the D end of the field effect transistor Q10 is connected with the S end of the field effect transistor Q11, nodes of the D end of the field effect transistor Q10 and the S end of the field effect transistor Q11 are electrically connected with two ends of a coil of the permanent magnet relay respectively, the D ends of the field effect transistor Q8 and the field effect transistor Q11 are arranged in a grounding mode, and the permanent magnet relay is provided with an opening state for disconnecting the L-phase input and the N-phase input of the circuit breaker body when a control chip outputs opening logic signals and a closing state for conducting the L-phase input and the.

It is through the logic signal of control chip output, divide logic signal and close logic signal, through the corresponding logic high level of different pin outputs, thereby make the field effect transistor correspond and switch on, make permanent magnet relay K1's coil to receive the electricity or not receive the electricity, and permanent magnet relay's switch then establishes ties respectively in L looks circuit and N looks circuit, realize L looks circuit and N looks circuit through its disconnection or closure and switch on or not switch on, need not to operate the action of divide-shut brake mechanism through the motor when remote control, a large amount of circuit breaker body inner space has been saved, and only need a permanent magnet relay can.

Furthermore, four control pins of the control chip are respectively electrically connected with the optical coupling isolation circuits in corresponding quantity, and the output ends of the optical coupling isolation circuits are electrically connected with the G end of the field effect tube. Namely, the four control pins are respectively and correspondingly provided with the optical coupling isolation circuit, so that the signal isolation effect is achieved.

An intelligent remote control system is designed on the left side of the circuit breaker, and remote control and background monitoring, early warning and protection are achieved through the Internet or the Internet of things communication mode. The action of the relay is controlled by the independent controller, the relay is connected in the main circuit in series, the action handle of the electromagnetic protection device of the circuit breaker can be disconnected during short circuit, overload protection, leakage protection, overvoltage and undervoltage protection and remote control switching-on and switching-off are all completed by controlling the relay, and meanwhile, monitoring, early warning and protection of electric arcs and circuit temperature can be expanded.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a circuit breaker with divide-shut brake relay intelligent control module, its includes the circuit breaker body, its characterized in that: the intelligent control module of the switching-closing relay is integrated in the circuit breaker body and comprises a permanent magnet relay and a control chip, wherein the switch end of the permanent magnet relay is respectively connected with an L-phase port and an N-phase port of the circuit breaker body in series, the control chip is provided with at least four control pins for outputting signals SW1, SW2, SW3 and SW4, the control pin of the output signal SW1 is electrically connected with the G end of a field-effect tube Q8, the control pin of the output signal SW2 is electrically connected with the G end of a field-effect tube Q4, the control pin of the output signal SW3 is electrically connected with the G end of the field-effect tube Q10, the control pin of the output signal SW4 is electrically connected with the G end of a field-effect tube Q11, the S end of the field-effect tube Q4 is connected with the S end of a field-effect tube Q10 and is electrically connected with a power supply, the D end of the field-effect tube Q4 is connected with the S end of a field-effect tube Q8, the D end, and the nodes of the two are respectively electrically connected with the two ends of the coil of the permanent magnet relay, the D ends of the field effect tube Q8 and the field effect tube Q11 are grounded, and the permanent magnet relay is provided with an opening state for disconnecting the L-phase input and the N-phase input of the circuit breaker body when the control chip outputs an opening logic signal and a closing state for connecting the L-phase input and the N-phase input of the circuit breaker body when the control chip outputs a closing logic signal.

2. The circuit breaker with a switch-on-off relay intelligent control module of claim 1, characterized in that: four control pins of the control chip are respectively electrically connected with the optical coupling isolation circuits in corresponding quantity, and the output ends of the optical coupling isolation circuits are electrically connected with the G end of the field effect tube.

3. The circuit breaker with a switch-on-off relay intelligent control module of claim 2, characterized in that: the optical coupler isolation circuit comprises an optical coupler, one end of a light emitter of the optical coupler is connected with a control chip circuit, and one end of a light receiver of the optical coupler is connected with a field effect transistor circuit.

4. The circuit breaker with a switch-on-off relay intelligent control module of claim 3, characterized in that: the anode of the illuminator of the optocoupler is connected with the power supply in series through a resistor, and the cathode of the illuminator is electrically connected with the control pin of the control chip.

5. The circuit breaker with a switch-on-off relay intelligent control module of claim 3, characterized in that: and an emitting electrode of a light receiver of the optical coupler is grounded, and a collector of the light receiver is electrically connected with the G end of the field effect tube.

6. The circuit breaker with a switch-on-off relay intelligent control module of claim 5, characterized in that: and a pull resistor on a collector of the light receiver is connected with a power supply, and a capacitor is connected in parallel between the collector and an emitter.

7. The circuit breaker with a switching-on and switching-off relay intelligent control module according to claim 1, 2, 3, 4, 5 or 6, characterized in that: the G end of the field effect transistor is connected with a resistor in series, and the output signal flows through the resistor to the G end of the field effect transistor.

8. The circuit breaker with a switch-on-off relay intelligent control module of claim 7, characterized in that: and the pull-down resistor at the G end of the field effect transistor is grounded.

9. The circuit breaker with a switch-on-off relay intelligent control module of claim 1, characterized in that: and two ends of a coil of the permanent magnet relay are respectively grounded through resistors.